Jewelry appraisals or evaluations are usually considered for various reasons. The main reason for assessing is to retain value or keep the record for the insurance policies. However, before conducting the appraisal process, you need to consider various factors, such as the following.
Evaluation of colour depends on several aspects. Firstly, gemstones might be enhanced with different treatments, such as radiation or heat exposure. While such treatments can improve the appearance of these gemstones, their value in the market reduces. In addition to that, gemologist may depend on various aspects, including physical characteristics. Moreover, every kind of gemstone has its own classifying scale for the colours. For example, high-grade rubies are red, while low grades have pink or orange tints.
Carat Measurements and Weight
The weight of the gemstones goes hand in hand with the cost. Typically, these stones are measured or evaluated by carats. For instance, 0.2 grams is the same as 1 carat. Hence, gemologists weigh gemstones and divide the measurements by 0.2. From there, the width, weight, and length of gems are measured before giving out final reports.
Type of Gemstone
It might be challenging for customers to evaluate gemstones. For this reason, they depend on experts to help determine the colours and weight of these stones. Professional evaluators use their skills to determine if the description they are familiar with matches what they see. However, it is not easy to give out an exact evaluation when the right tools are not used. Hence, evaluators need to carry various examinations that will evaluate physical and chemical properties, such as the following:
- Specific gravity.
- Refractive index.
- Optic sign.
Most people usually confuse the cut of these stones with their shape. Although gemstones need to be sliced into various shapes, a gemologist has to ensure that the cuts are beautiful and natural. When cutting gems, evaluators need to consider the symmetry, brightness, and durability of the cuts.
The clarity of gemstones refers to the total number of blemishes and inclusions they have. However, there is a common belief that clarity applies only to transparent stones or diamonds. This is basically a misconception. Opaque stones can be classified by clarity, but this depends on what the surface looks like. The more the level of clarity, the higher the value. Additionally, these stones may be treated to improve their clarity. This procedure is termed as fracture filling or cavity, but this depends on how you go far with the treatment.
The Final Remarks
There are many aspects that you need to consider when appraising gemstones. This includes the experience of jewellers and the level of training. Hence, whenever you need appraisal services, find an evaluator who is conversant with various factors, such as colour, clarity, and type.